Auxiliary tool for dismounting or mounting main shaft sleeve of crank disc transmission case

Abstract

The utility model relates to an auxiliary tool for disassembling or assembling a main shaft sleeve of a crank disc transmission case, and belongs to the technical field of auxiliary tools. The tool comprises an auxiliary tool body. The auxiliary tool comprises an auxiliary tool body, the auxiliary tool body is in a cuboid shape, a round through hole with a notch is formed in the auxiliary tool, the through hole is matched with a main shaft, and the notch penetrates through one end of the auxiliary tool body. A round counter bore is formed in the side, facing the shaft sleeve, of the auxiliary tool body, the counter bore is matched with the shaft sleeve, and the counter bore and the through hole share the same circle center. The shaft sleeve and the main shaft cannot be damaged when the tool is used for dismounting or mounting the shaft sleeve.

Description

Technical Field

[0001] The present invention belongs to the technical field of auxiliary tools, and in particular relates to an auxiliary tool for disassembling or installing a main shaft sleeve of a crankshaft transmission box. Background Art

[0002] The crank drive box is a crucial component of the ZL29 filter rod forming and cutting system. Its tail is connected to the main motor's toothed belt, which drives the crank drive box, which in turn drives the crank-connecting rod mechanism and the bell-mouth assembly to reciprocate. This, in conjunction with the cutterhead assembly, cuts the filter rods into rods that meet process requirements. The crank drive box is a high-speed rotating component, and parts like the bearings and spindle are susceptible to wear. This wear can cause high equipment noise, large fluctuations in filter rod length, and even damage. If the crank drive box produces abnormal noise or excessive vibration, the bearings, spindle, and other parts must be disassembled, inspected, or replaced. Furthermore, to ensure stable and efficient operation of the equipment, the crank drive box's angular contact ball bearings must be regularly replaced.

[0003] like Figure 6 As shown, when replacing the crankshaft transmission box bearing, the circlip 2, the sleeve 3 and the lock nut 4 need to be removed, and finally the paired angular contact ball bearings 5 can be removed.

[0004] The shaft sleeve and the main shaft 1 are interference fit. When disassembling or installing, the shaft sleeve is difficult to disassemble or install due to its small outer diameter, and the main shaft is easily damaged. Utility Model Content

[0005] The present disclosure provides an auxiliary tool for disassembling or installing a main shaft sleeve of a crank disk transmission box to solve the above technical problems.

[0006] An auxiliary tooling for disassembling or installing a crankshaft transmission box spindle sleeve, comprising an auxiliary tooling body; the auxiliary tooling body is in a rectangular shape, and is provided with a circular through hole with a notch, the through hole cooperates with the spindle, and the notch passes through one end of the auxiliary tooling body; the auxiliary tooling body is provided with a circular countersunk hole on the side facing the sleeve, the countersunk hole cooperates with the sleeve, and the countersunk hole and the through hole share a common center.

[0007] In some embodiments, a through hole for a cylindrical knocking rod of a sleeve is provided at the edge of the countersunk hole.

[0008] In some embodiments, the counterbore has a diameter of 55.10 mm.

[0009] In some embodiments, the depth of the counterbore is 10.00 mm.

[0010] In some embodiments, the diameter of the through hole is 50.10 mm.

[0011] In some embodiments, the auxiliary tooling body is made of steel.

[0012] The beneficial effects of the present invention are: the position of the sleeve and the main shaft can be quickly located simultaneously with high positioning accuracy, and the main shaft and sleeve will not be damaged during installation or removal. The tooling has positioning, supporting and fixing functions, and can cooperate with a press to quickly remove or install the sleeve.

[0013] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0015] Figure 1 1 is a schematic diagram showing the auxiliary tooling structure according to an embodiment of the present disclosure.

[0016] Figure 2 2 is a second schematic diagram showing the auxiliary tooling structure according to an embodiment of the present disclosure.

[0017] Figure 3 Schematic diagram showing the cooperation between the auxiliary tooling and the shaft sleeve according to an embodiment of the present disclosure.

[0018] Figure 4 FIG2 is a schematic diagram showing the disassembly of a sleeve according to an embodiment of the present disclosure.

[0019] Figure 5 FIG2 is a schematic diagram showing the installation of a shaft sleeve according to an embodiment of the present disclosure.

[0020] Figure 6 It is a schematic diagram showing the cooperation between the sleeve and the main shaft.

[0021] The markings in the figure are as follows: 1. Main shaft; 2. Elastic circlip; 3. Bushing; 4. Locking nut; 5. Angular contact ball bearing; 6. Auxiliary tooling body; 7. Through hole; 8. Countersunk hole; 9. Through hole for cylindrical knock rod of bushing. DETAILED DESCRIPTION

[0022] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure.

[0023] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.

[0024] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0025] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0026] The present invention mainly solves the technical problem that the main shaft sleeve of the crank disk transmission box of the ZL29 filter rod making machine is difficult to disassemble or install, and the main shaft is easily damaged.

[0027] This tooling utilizes through holes and countersunk holes to position the spindle and sleeve respectively, thus preventing the spindle from being damaged due to inaccurate positioning, unstable support, or uneven force during disassembly of the sleeve during operation.

[0028] like Figure 1 、 Figure 2 、 Figure 3 As shown, an auxiliary tool for disassembling or installing a crank disk transmission box main shaft sleeve includes an auxiliary tool body 6;

[0029] The auxiliary tooling body is in the shape of a rectangular parallelepiped, and a circular through hole 7 with a notch is provided on the auxiliary tooling. The through hole cooperates with the main shaft, and the notch passes through one end of the auxiliary tooling body;

[0030] A circular countersunk hole 8 is provided on the side of the auxiliary tool body facing the shaft sleeve. The countersunk hole cooperates with the shaft sleeve, and the countersunk hole and the through hole share a common center.

[0031] In some embodiments, a cylindrical knock rod through hole 9 is provided at the edge of the countersunk hole.

[0032] In some embodiments, the counterbore has a diameter of 55.10 mm.

[0033] In some embodiments, the depth of the counterbore is 10.00 mm.

[0034] In some embodiments, the diameter of the through hole is 50.10 mm.

[0035] In some embodiments, the auxiliary tooling body is made of steel.

[0036] The auxiliary tool features a notched, circular through-hole-countersunk design. The countersunk hole dimensions are determined by the sleeve's outer diameter: 55.00mm, inner diameter: 49.98mm, height: 16mm. The countersunk hole dimensions are 55.10mm, and the depth is 10.00mm. The countersunk hole diameter is slightly larger than the sleeve's outer diameter, and the depth is less than the sleeve's height. This ensures accurate positioning of the sleeve during removal or installation, while also facilitating insertion and removal. The through-hole dimensions are determined by the spindle dimensions: 50.00mm at the spindle's sleeve mounting location, and the through-hole dimensions are 50.10mm. This slightly larger through-hole dimension ensures accurate spindle positioning and facilitates insertion and removal. This dual positioning of the countersunk hole and through-hole ensures accurate positioning of the sleeve and spindle during sleeve removal or installation, preventing scratches or damage to the spindle from the through-hole.

[0037] When the sleeve is stuck on the tooling, it can be removed smoothly by using the sleeve cylindrical knock rod through hole and the notch of the tooling to knock the sleeve diagonally.

[0038] like Figure 4 As shown, when removing the sleeve, first take out the circlip at the upper end, loosen and move the circlip at the lower end so that it is close to the lock nut, put the tooling on the main shaft, and use a press to apply a vertical downward pressure from the shaft head. The sleeve is positioned, supported and fixed by the tooling, and the main shaft is squeezed downward and separated, and finally the sleeve is taken out.

[0039] like Figure 5 As shown in the figure, when installing the sleeve, first install the elastic ring near the lock nut, then insert the sleeve into the countersunk hole of the tooling, put the sleeve outside the main shaft, and use a press to apply a vertical downward pressure from the tail of the shaft. The sleeve is positioned, supported and fixed by the tooling, and the main shaft is squeezed downward to fit the elastic ring. Finally, another elastic ring is put on to complete the installation of the sleeve.

[0040] The auxiliary tooling for removing or installing the crankshaft sleeve of the crankshaft transmission case according to the present disclosure has been described in detail. To avoid obscuring the concept of the present disclosure, some details known in the art have been omitted. Based on the above description, those skilled in the art will fully understand how to implement the technical solutions disclosed herein.

[0041] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art will understand that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. Those skilled in the art will understand that the above embodiments may be modified without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. An auxiliary tool for disassembling or installing a crankshaft transmission case main shaft sleeve, characterized in that: Including auxiliary tooling body; The auxiliary tooling body is in a rectangular shape, and a circular through hole with a notch is provided on the auxiliary tooling, the through hole cooperates with the main shaft, and the notch passes through one end of the auxiliary tooling body; A circular countersunk hole is provided on the side of the auxiliary tool body facing the shaft sleeve. The countersunk hole is matched with the shaft sleeve, and the countersunk hole and the through hole share a common center.

2. The auxiliary tool for disassembling or installing the crankshaft sleeve of the transmission case according to claim 1, characterized in that: The edge of the countersunk hole is provided with a shaft sleeve cylindrical knocking rod through hole.

3. The auxiliary tool for disassembling or installing the crankshaft sleeve of the transmission case according to claim 1, characterized in that: The diameter of the countersunk hole is 55.10 mm.

4. The auxiliary tool for disassembling or installing the crankshaft sleeve of the transmission case according to claim 1, characterized in that: The depth of the countersunk hole is 10.00 mm.

5. The auxiliary tool for disassembling or installing the crankshaft sleeve of the transmission case according to claim 1, characterized in that: The diameter of the through hole is 50.10 mm.

6. The auxiliary tool for disassembling or installing the crankshaft sleeve of the transmission case according to claim 1, characterized in that: The auxiliary tooling body is made of steel.

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